{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7c36658abb4b15eb8da6a1d729bab603194f048f7328a3a4bfca8d7d3bf5531c",
    "signature": "0x6d0eb28e291baaee1ceddf82770cb3eb4e97e1a74ae778e5730c757c66d8d6a75f7103a2eb266b5a3c2d044be434b2cf9c1e2671618b9c6c29d6317f919b792d1b",
    "signer": "0x9f0d24D8587c91F9644D37DAa3198CbD6bD11a23",
    "userId": "5051446"
  }
}